Piano-violin.



A. PHILIPPS.

PIANO VIOLIN.

APPLICATION FILED HOV.1,1911.

1,038,643, Patented Sept. 17, 1912.

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UNITED STATES PATENT OFFICE.

AUGUST PHILIPPS, OF FRANKFORT-ON-THE-MAIN, GERMANY, ASSIGNOR TO FRANK-FUR'IER MUSIKWERKE-FABRIK J. D. PHILIPPS & SGHNE'AKT. GES., OF FRANK-FORT-ON-THE-MAIN, GERMANY.

PIANO-VIOLIN.

To all whom it may concern Be it known that I, AUGUST PI-IILIPPS, asubject of the Emperor of Germany, and residing at Solmsstrasse 9, inFrankfort-on-the- Main, Germany, have invented certain new and usefulImprovements in Piano-Violins, of which the following is aspecification.

The object of the present invention is to provide a simple form ofoperating means for transmitting a reciprocal motion to the bow ofmechanical string instruments.

The drawing represents one form of construction, in. which:

Figure 1 is a front view, and Fig. 2 a transverse section of the bow andits operating means.

In the form of construction shown in the drawing it is assumed, that thestrings are pressed against the bow, however the sub ject matter of theinvention may be employed with the same success, if the arrangement isreversed.

In the drawing (1 indicates the resonance body, which is provided withthe strings b, and 0 indicates a bow provided with bow hairs g andarranged above the resonance body and provided with a guide (1 for theoperating or driving roller 6. The guide (2 consists of an upperoperating rail f and. a lower operating rail 9, between which the roller6 is arranged in such a manner that it can engage the upper or the lowerrail. The roller itself is mounted on the movable arm It of a jointedshaft 2'. This movable shaft arm in is adapted to be influenced by twopneumatic levers 7c, k which corresponding to the direction in whichthey are operated, move the free end of said arm either upwardly ordownwardly and thereby press the roller 0 which always rotates in thesame direction, either against the upper operating rail f or the loweroperating rail 9. In accordance with the engagement of the operat-Specification of Letters Patent.

Application filed November 1, 1911.

Patented Sept. 17, 1912.

Serial No. 657,979.

ing or driving roller 6 with the upper 01' lower guide rail, the bow ismoved forwardly or rearwardly. The bow proper is mounted on guidingmeans in the form of rollers Z, Z

The strings Z) can be moved toward the bow c in any desired manner, apneumatic device a being shown as one form of means and also grouparrangements and combinations of the described devices for largerinstruments can be easily obtained in any known manner.

hat I claim as new and desire to secure by Letters Patent is:

1. The combination with a string musical instrument and a bow therefor,of a plurality of operating rails for the bow, guiding means for thebow, and a driven roller engaging said rails to operate the bow.

2. The combination wlth a string musical instrument and a bow therefor,of a plurality of operating rails for the bow, guiding means for thebow, a driven roller engaging said rails to operate the bow, and meansfor moving the roller into and out of engagement with said rails,substantially described.

3. The combination with a string musical. instrument and a bow therefor,of a plurality of operating rails for the bow, guiding means for thebow, a jointed shaft adapted to be driven in one direction, a roller onsaid shaft, and means engaging said shaft to move said roller into andout of engagement with said rails, substantially described.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST PHILIPPS.

Witnesses JEAN GRUND, CARL GRUND.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). 0.

